circuit breaker VL400N standard breaking capacity Icu=55kA, 415V AC 3-pole, line protection Electronic Trip Unit ETU12, LIG 3 phases/3 lines In=315A, rated current IR=128...315A, overload protection, II=1.25 to 11xIN, short-circuit protection without auxiliary release Auxiliary/alarm switch mounting kit 2 AUX (1 NO+1 NC)+1 AS (1 NO)